Quantum chromodynamics with various number of flavors

Abstract

The phase structure of QCD with various number of flavors is studied for Wilson quarks. For the case of $N_F=3$ we find that the finite temperature deconfining transition is of first order in the chiral limit on an $N_t=4$ lattice. Together with our previous results that the deconfining transition in the chiral limit is continuous for $N_F=2$ and is first order for $N_F=6$, the order of the transition is found to be consistent with a prediction of universality. The case of $SU(2)$ QCD is also studied in the strong coupling limit and the phase structure is found to be quite similar to the case of $SU(3)$: There exists a critical number of flavors $N_F^{\ast }$ and for $N_F\ge N_F^{\ast }$ the confinement is broken even in the strong coupling limit for light quarks. $N_F^{\ast }=3$ corresponding to 7 for $SU(3)$.

arXiv comment3 pages with 5 PS figures, LaTeX (espcrc2.sty required), UTHEP-266

References in corpus (2)

• Static and Dynamic Critical Phenomena at a Second Order QCD Phase Transition
• Quark Confinement in Multi-Flavor Quantum Chromodynamics

Cited by in corpus (8)

• Hidden Local Symmetry at Loop -- A New Perspective of Composite Gauge Boson and Chiral Phase Transition
• Phase structure of lattice QCD for general number of flavors
• Finite-Temperature Phase Structure of Lattice QCD with Wilson Quark Action
• Global Structure of Conformal Theories in the SU(3) Gauge Theory
• The nature of the thermal phase transition with Wilson quarks
• Finite Temperature QCD on the Lattice
• Nontrivial, Asymptotically Non-free Gauge Theories and Dynamical Unification of Couplings
• Thermodynamics of 1-flavor QCD